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Radio Propagation


Solar X-rays:
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Geomagnetic field:
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D-Region Absorption
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Created by PA4RM

Three BIRDS-3 satellites with Amateur Radio payloads are scheduled to be deployed from the International Space Station on Monday, June 17. The BIRDS-3 constellation includes CubeSats from three countries: They are Nepal’s first satellite, NepaliSat-1; Uguisu from Japan, and Sri Lanka’s first satellite, Raavana-1.

The primary mission of the BIRDS constellation is to provide ciphered short message...

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